24-01-2021, 11:36 PM
Probably not used in any current-production engine, no. Common-rail system, using a permanent very highly pressurised fuel line, with electrically-operated nozzles to let fuel into the cylinders, with everything controlled by an ECU, seem to have taken over from injection pumps. Gone I suspect are the days when Diesel engines have nothin electrical essential to their operation, except small generators and mixers.
Of course, injection pumps and governors, whether vacuum or centrifugal, themselves took over from air injection, where a compression pump kept a small reservoir of super-high compressed air, which was used to drive diesel fuel into the cylinders on a scent-spray principle. But I think that went out of fashion in the mid-1920's.
Of course, injection pumps and governors, whether vacuum or centrifugal, themselves took over from air injection, where a compression pump kept a small reservoir of super-high compressed air, which was used to drive diesel fuel into the cylinders on a scent-spray principle. But I think that went out of fashion in the mid-1920's.
